Bought One New "Breadboard Power Supply", Amazing by it's Design and Features

          Power supply is always a big issue in many electronic circuits. For the proper working of circuit and to get the expected result, a steady and ripple less DC power supply is essential. I had been searching for a good DC breadboard power supply since the last few months and I got one from rhydoLABZ. I am satisfied in this product because of it's many awesome features. One of the important feature is it's construction. Board can be easily fixed to breadboard as shown in the following image. Another important feature is the facility to power it from computer as well as from external voltage source.

More features of the product is given below.

     Locking ON / OFF Switch
     LED Power Indicator
     Input Voltage: 6.5 V to 12 V (DC) or USB Power Supply
     Output Voltage : 3.3 V / 5 V
     Maximum Output Current: 700 mA
     Power Rails 0 V, 3.3 V, 5 V on Breadboard
     Size: 5.3 cm × 3.5 cm
     Two Groups of Header Pins

          Some more images of the product is given below. For more images, details and to purchase the product online, visit rhydoLABZ.

How to Take the Screenshot of a Video Frame from "Videos" Software in Ubuntu?

          While playing certain videos, we will have a desire to take screenshot of certain frames in that video for further investigations. Even if the keyboard have a direct shortcut to take the screenshot easily, that screenshot will have some unwanted parts that we have to eliminate using another image editing software.  Here, we will see the method of taking a screenshot of a video directly from "Videos" software in Ubuntu. Screenshot taken in that way will not have any unwanted parts. To take the screenshot,

Go to Edit => Take Screenshot in the menu bar.

Screenshot will be saved to your Pictures folder.

Amazing Robotic Car with Steering, Controlled by Arduino Mega and L293D

          Yesterday, I got an idea to design a simple robotic car that can be controlled used arduino. Designing robots using arduino is simple and requires less wiring. Extra things needed to control a robotic vehicle is a motor driver. Motor driver used here is L293D. Each L293D can control the direction of rotation of two DC motors. Here, my robotic vehicle has two DC motors. One motor is for the movement of car and the other is for steering. Some images of my robotic vehicle is given below.

          I have uploaded the video of my robotic car to YouTube. Video of controlling my robotic car using arduino mega is given below.

How to Get the Image Properties from GIMP Image Editor ?

          Sometimes, when we edit images using GIMP image editor we will have to get the details of the images like file size, file type, file name etc. GIMP provides a direct tool to get the details of an image in an easy way. Image details can be easily obtained through

Image => Image Properties from the menu bar.

         If Image Properties is clicked, a dialogue box will appear where you will get all the details of the image open in GIMP window as shown in the following image.

How to Reopen Accidentally Closed Toolbox in GIMP ?

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         When we are using GIMP image editor, sometimes our tool box window may close accidentally. Tool box window is always essential for completing the tasks without spending much time. If you are a starter in GIMP, you will get a bit confused about reopening the closed tool box window. Tool box window can be easily reopen by pressing CTRL + B. If it is not opening even if you press CTRL + B, then go to

Tools => New Toolbox

Then a new Toolbox will appear as shown in the following image.